Water box for paper making machinery



June 1964 F. H. GOYETTE WATER BOX FOR PAPER MAKING MACHINERY 2 Sheets-Sheet 1 Filed July 6, 1962 INVENTOR FRANCIS H.GOYETTE flaw r ATTORNEY J1me 1964 F. H. GOYETTE WATER BOX FOR PAPER MAKING MACHINERY 2 Sheets-Sheet 2 Filed July 6, 1962 FIG.6

INVENTOR FRANCIS H. GOYETTE aM/m ATTORNEY United States Patent 3,139,374 WATER BOX FOR PAPER MAKWG MACHINERY Francis Henry Goyette, Auburn, Mass, assignor to Lodding Engineering Corporation, Auburn, Mass., a corporation of Massachusetts Filed July 6, 1962, Ser. No. 293,979 10 Claims. (Cl. 162-232) This invention relates to a new and improved water box particularly adapted for applying fluids of various kinds as required to the rolls of paper making machinery or wherever desired or convenient. The principal objects of the invention reside in the provision of a flexible, impervious apron which can be quickly and easily changed even While the machine is running should it be found necessary to do so; a water box having parts which are quickly and easily cleaned in contradistinction to drain pipes, etc. of the prior art; the provision of a new and improved removable dam in the form of an elongated bar maintaining a constant water level, which also has the function of holding down the apron, and resulting in better temperature distribution with the excess water overflowing the dam in uniform amount from end-to-end of the water box; the provision of quick dumping of the pond water; the provision of new and improved adjusting means for fitting the water box apron to the roll, and new and improved supply pipe and supply pipe valves.

Other objects of the invention include the provision of new and improved deckles which are adjustable along the water box and also with respect to the roll surface independently of the water box, the box having closed ends so that any leakage past the deckles is dammed by the apron at the ends of the box, and flows back into the drain trough.

A further object of the invention comprises the provision of means for quickly and easily varying the water depth at the tip of the apron simply by adjusting the entire box relative to the roll, or conversely using thicker dam removable bars if it is desired to increase the water level.

The invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly set forth in the appended claims.

Reference is to be had to the accompanying drawings, in which:

FIG. 1 is a plan view illustrating the new water box;

FIG. 2 is an end view thereof;

FIG. 3 is a section on line 3--3 of FIG. 1;

FIG. 4 is a view in rear elevation, looking in the direction of arrow 4 in FIG. 1;

FIG. 5 is a plan view of a deckle, and

FIG. 6 is a view in side elevation of the decide.

The new Water box is essentially a one-piece container which may be made up as desired by bending pieces of sheet metal, welding the same, etc. in order to fabricate it. The construction of the box as best seen perhaps in FIG. 3 comprises a continuous and generally flat bottom member 10 which extends from side-to-side of the entire roll, this bottom member 10 terminating in a free front forward edge as at 12 and at its rear edge being provided with a downwardly depending relatively large trough 14. The trough 14 at its rear edge extends upwardly in a continuous rear wall member 16 which again is coextensive with the bottom 10 and trough 14 and extends across the entire machine. Rear wall 16 terminates at its upper edge in an inwardly or forwardly directed flange 18. The ends of the water box are completely closed in by generally triangularly' shaped walls indicated at 20. I

Mounted on the rear wall 16 adjacent the top edge thereof is an end-to-end inlet pipe generally indicated at 22, this inlet pipe being provided with a series of valves alsam Ice Patented June 30, 1964 as sometimes it is preferred to have but a single output operating so as to recirculate the fluid with greater case. As shown in FIG. 1, the inlet pipe 22 is provided with inlet fittings 26.

The valves 24 are of simple construction and each comprises a nipple 28 having threaded in the top portion thereof a screw or the like 30 which may have a lock nut as shown in FIG. 3 if desired and extending into the nipple which is threaded into the pipe 22. Inside the nipple there is provided a flexible tube 32 which is provided with some means for maintaining it in position such as for instance the outwardly extending external flange 34. When it is desired to vary the flow of fluid, it is simply necessary to turn the screw 32 in the desired direction to cause the rubber tube to be distorted more or less as shown at 36.

The ends walls 2 0 are provided with trunnions 38 these being rotatably mounted in bearing blocks 40 in turn mounted on fore-and-aft adjustable slide members 42 having some means to provide the adjustment and to clamp the same such as T slots 44, and cooperating headed bolts 46. By this means the bearing blocks 4ilmay be moved back-and-forth toward and from the roll 48. Each trunnion is provided with a generally radially extending stop member 50 secured thereto by a pin 52 and adapted to engage an adjusting screw 54 which is mounted in a lip 56 on its bearing block 40, and as seen in FIG. 3 this positions the entire water box in desired adjusted position relative to the roll 48. Thus it will be seen that the entire water box including the inlets, outlets, valves, etc., and also further novel devices to be described, can be moved in and out toward the roll, and can be rotatably adjusted according to demands. The slide members 42 can be mounted on the machine frame or in any way desired and ordinarily this can be done by mounting the same on the supports for the doctor blade which can be of general and conventional construction as illustrated in FIG. 3 by reference numeral 60.

Secured in any manner desired upon the bottom wall of the water box 10, there are a series of upstanding pins or the like which are generally indicated at 62. These pins serve to maintain the dam bars 64 in position, these dam bars having apertures or bores 66 extending through the same or by at least part Way through as shown in FIG. 3. The dam bars 64 may be made as high as the desired level for the pond water, and they are preferably made of metal and are relatively heavy. Also in view of the fact that some water boxes are quite long, the dam bars may be made in sections and it will be noted that in FIG. 1 the dam bar 64 is comprised of three similar separate pieces which are aligned in end-to-end relation and have overlapping end portions as at 68.

There is a flexible, impervious apron generally indicated by the reference numeral 70. This apron is longer than the water box and as perhaps best seen in FIG. 4 is therefore caused to be bent or folded upwardly at its ends as at 72 by reason of contact with the end walls 20. This is also shown in FIGS. 1 and 3. This apron is a rigid plate '78 and this plate also is provided with apertures to fit over pins 62, the plate 78 and therefore apron '70 being held down by the heavy dam bars 64 as is clearly shown in FIG. 3.

The deckles are generally indicated by reference numeral 80 and these are adjustable along the entire length of the water box. The deckles themselves are shown in detail in FIGS. and 6 wherein it will be seen that each deckle comprises a rectangular block 82 to which a side plate 84 is attached by any convenient fasteners, side plate 84 extending forwardly of block 82 in the conformation shown in FIG. 6 as indicated at 86. This conformation extends somewhat downwardly from the top edge of the plate 84 extending forwardly at an incline and then on a reverse angle 88 providing a cut-away portiw at the forward lower endof the deckle;

Another block 90 isyertically adjustably secured by means of a fastener 92 extending through a slot 94 in the forwardly extending portion of the plate 34 so as to provide for easy vertical adjustment of block 5'0. Block 90has applied thereto at the lower inclined edge thereof at 96 a piece of felt 98 which is carved out at 100 to fit the roll surface. The block 82 and plate 84 are apertured to provide for a pin which extends outwardly at both sides thereof (see FIG. 5).

The deckles are held down by special new and improved clamp members generally indicated at 104 (see FIG. 3). Each clamp member is provided with fingers 1%, N8 holding the same slidably onto flange 18 and the finger 106 is conveniently threaded to receive a fastener 114 by which means the clamp 104 is fixed in position anywhere along the flange 18.

From the area of the two fingers 106 and 108, the clamp extends forwardly and downwardly as for instance at 112 terminating in a clamping member 114 comprising a pair of legs 116, 116 which engage both sides of the deckle 8t) and bear down on the pin 102. However, the clamping members 114 stop short of the forward edge of block 82 so that it is clearly possible to vertically adjust block 0 at any time that this may be desired by means of the fastener 92.

It will be seen that with the deckles set where desired, the web is traveled between the same and the pond water can be restricted to the area between the deckles and the dam bars. Very little water will escape past the deckles but any water that does so escape will be dammed at the ends of the water box by means of the upturned ends 72 of the apron 70.

If it is desired to dump the pond water, all the operator has to do is to grasp one of the dam bars 64 and move it slightly upwardly so that the water will escape under the dam and into the trough 14 and out the outlet. If it is desired to lower the depth of the pond water it is merely necessary to move the entire water box slightly forwardly relative to the roll 48, thus increasing the angle of the bottom of the water box and the apron with respect to the roll surface, in which case of course there will be less water retained in the pond as it will pass as always uniformly over the dam from end-to-end thereof.

The dam bars are quickly and easily removed as they are not fastened down and the plate 78 and apron 70 can then also be removed, cleaned and replaced without the use of any fastenings whatsoever, and all this is done from the rear of the box and at the top thereof, the deckles being quickly and easily removable simply by removing the clamps 104.

There are no pipes which are necessary to 'be cleaned, it being easy to clean the trough 14 from the top of the box and thus it will be seen that all of the objects of the invention have been carried out in a relatively simple construction which as a matter of fact is relatively inexpensive to manufacture because it has little or no machined parts involved.

Having thusdescribed my invention and the advantages thereof, I do not wish to be limited to the details 4 herein disclosed, otherwise than as set forth in the claims, but what I claim is:

l. A water box comprising a bottom wall having a free forward edge and connected rear and end walls, the box being open-topped, an outlet for the box, a supply pipe for the box above the bottom wall, a removable apron resting on the bottom wall, said apron being flexible and impervious and extending forwardly past the forward edge of the bottom wall, removable means resting on and holding the apron down onto the bottom wall, leaving the apron free to flex in the area thereof that extends for wardly. of the bottom wall, said removable means including a relatively heavy dam resting on the apron, a depending elongated trough at the rear portion of the bottom wall adjacent the rear wall, the darn being positioned adjaeent the trough and at the side edge thereof toward the free edge of the bottom wall, fluid in the box being held 7 in a pond on the apron and forwardly of the dam, and

flowing over the dam to the trough, the outlet being in the trough.

2. The water box of claim 1 wherein the dam is generally horizontal, the fluid flowing over the dam substantially uniformly from end-to-end thereof.

7 3. The water box of claim 1 wherein the dam is generally horizontal and the fluid flows over the dam substantially uniformly from end-to-end thereof, said darn being in several sections from end-to-end thereof, at least one section of the dam being freely liftable to allow the pond fluid to escape quickly to the trough.

4. A water box comprising a bottom wall having a free forward edge and connected rear and end walls, the box being open-topped, an outlet for the box, a supply pipe for the box above the bottom wall, a removable apron resting on the bottom wall, said apron being flexible and impervious and extending forwardly past the forward edge of the bottom wall, removable means resting on and holding the apron down onto the bottom wall, leaving the apron free to flex in the area thereof that extends forwardly of the bottom wall, said means including a flat plate generally corresponding to the size and shape of the bottom wall, said plate overlying the apron, and an elongated, relatively heavy dam overlying the plate.

5. The water box of claim 4 including means to maintain the plate, apron and dam in position against shifting on the bottom wall.

6. The water box of claim 4 including means to maintain'the plate, apron and dam in position against shifting on the bottom wall, said last-named means including a series of upstanding pins on the bottom wall, said dam, plate, and apron being apertured to receive the pins freely.

7. A water box comprising a bottom wall having a free forward edge and connected rear and end walls, the box being open-topped, an outlet for the box, a supply pipe for the box above the bottom wall, a removable apron resting on the bottom wall, said apron being flexible and impervious and extending forwardlypast the forward edge of the bottom wall, removable means resting on and holding the apron down onto the bottom wall, leaving the apron free to flex in the area thereof that extends forwardly of the bototrn wall, a pair of deckles, means to hold the deckles down onto the apron, the hold-down means comprising a member adapted to engage each deckle, means to removably secure each member to the rear wall, means on each member to straddle its respective deckle and a lateral projection on each deckle, the deckle straddling means engaging the projections.

8. A water box comprising a bottom wall having a free forward edge and connected rear and end walls, the box being open-topped, an-outlet for the box, a supply pipe for the box above the bottom wall, a removable apron resting on the bottom wall, said apron being flexible and impervious and extending forwardly past the forward edge of the bottom wall, removable means resting on and holding the apron down onto the bottom wall, leaving the apron free to flex in the area thereof that extends forwardly of the bottom wall, a series of valves for the supply pipe, each valve comprising a nipple, each nipple be ing mounted on the pipe along the same in mutually spaced relation, a flexible tube in each nipple, and adjustable means to distort each tube to at least partially block it.

9. A water box comprising a bottom wall having a free forward edge and connected rear and end walls, the box being open-topped, an outlet for the box, a supply pipe for the box above the bottom wall, a removable apron resting on the bottom wall, said apron being flexible and impervious and extending forwardly past the forward edge of the bottom Wall, removable means resting on and holding the apron down onto the bottom wall, leaving the apron free to flex in the area thereof that extends forwardly of the bottom Wall, said removable means including a substantially flat plate which generally corresponds to the size andthe shape of the bottom wall and which substantially overlies the entire bottom wall, the plate being freely manually removable and completely releasing the apron so that the apron is freely manually removable upon removal of the plate.

10. A deckle comprising a block having a front and a rear end, a plate on the block at a side surface thereof, the plate extending beyond the front end of the block, a second block mounted on the extending end of the plate, means to adjust the second block in a direction parallel to the plate but at right angles to the direction that the plate extends past the block at its front end, and a piece of soft material on the second block for engagement with a roll surface.

References Cited in the file of this patent UNITED STATES PATENTS 1,867,931 'Traquair et al July 19, 1932 2,439,802 Francis Apr. 20, 1948 2,514,653 Lerch July 11, 1950 FOREIGN PATENTS 475,284 Great Britain Nov. 17, 1937 

4. A WATER BOX COMPRISING A BOTTOM WALL HAVING A FREE FORWARD EDGE AND CONNECTED REAR AND END WALLS, THE BOX BEING OPEN-TOPPED, AN OUTLET FOR THE BOX,A SUPPLY PIPE FOR THE BOX ABOVE THE BOTTOM WALL, A REMOVABLE APRON RESTING ON THE BOTTOM WALL, SAID APRON BEING FLEXIBLE AND IMPERVIOUS AND EXTENDING FORWARDLY PAST THE FORWARD EDGE OF THE BOTTOM WALL, REMOVABLE MEANS RESTING ON AND HOLDING THE APRON DOWN ONTO THE BOTTOM WALL, LEAVING THE APRON FREE TO FLEX IN THE AREA THEREOF THAT EXTENDS FORWARDLY OF THE BOTTOM WALL, SAID MEANS INCLUDING A FLAT PLATE GENERALLY CORRESPONDING TO THE SIZE AND SHAPE OF THE BOTTOM WALL, SAID PLATE OVERLYING THE APRON, AND AN ELONGATED, RELATIVELY HEAVY DAM OVERLYING THE PLATE.
 10. A DECKLE COMPRISING A BLOCK HAVING A FRONT AND A REAR END, A PLATE ON THE BLOCK AT A SIDE SURFACE THEREOF, THE PLATE EXTENDING BEYOND THE FRONT END OF THE BLOCK, A SECOND BLOCK MOUNTED ON THE EXTENDING END OF THE PLATE, MEANS TO ADJUST THE SECOND BLOCK IN A DIRECTION PARALLEL TO THE PLATE BUT AT RIGHT ANGLES TO THE DIRECTION THAT THE PLATE EXTENDS PAST THE BLOCK AT ITS FRONT END, AND A PIECE OF SOFT MATERIAL ON THE SECOND BLOCK FOR ENGAGEMENT WITH A ROLL SURFACE. 